All of the RS articles are rumor and hype, and they have been for the last couple of years. Most of the articles and information are recycled stories or supposedly from an 'inside source', but if Ford is planning on releasing this next year then they should probably do a little more actual leaking and marketing. Until it's sitting in my driveway I won't care or believe whether it's fwd or awd, but I will continue to hope that it does indeed come to the US.
If it does come to the US then you'll want to start prepping now-the RS model isn't usually around for more than 2-3 years with a specific production run.